books.google.nl - The international creation of typefaces after 1950 was decisively influenced by the Swiss type designer Adrian Frutiger. His Univers typeface and the machine-readable font OCR-B, which was adopted as an ISO standard, are milestones, as is his type for the Paris airports, which set new standards for signage...https://books.google.nl/books/about/Adrian_Frutiger_Typefaces.html?hl=nl&id=X3_oBQAAQBAJ&utm_source=gb-gplus-shareAdrian Frutiger – Typefaces